I've been using skinny top heavy bottoms for drop c sharp, now I've tried beefy slinkys for drop c both on a cort x-2 and ibanez s 521, they have 25.5 scale and I feel they are too stiff, especially the F and A strings. Should I try 18p and 14 for F and A. 22p and 15 are really stiff and hard to bend.